Sustained space exploration will require infrastructure that doesn't currently exist: buildings, housing, rocket landing pads.
Space Exploration
Aug 10, 2022
0
247
Heat trapping carbon dioxide emissions from making cement, a less talked about but major source of carbon pollution, have doubled in the last 20 years, new global data shows.
Environment
Jun 22, 2022
0
74
With the pervasive single-use masks during the pandemic now presenting an environmental problem, researchers have demonstrated the idea of incorporating old masks into a cement mixture to create stronger, more durable concrete.
Materials Science
Apr 27, 2022
0
479
Researchers from Monash University have discovered a new design motif derived from the rigid external covering of invertebrates that may help create more damage tolerant materials for future building and construction.
Materials Science
Apr 07, 2022
1
569
How can we build on Mars? A casual chat with a geologist led a University of Canterbury (UC) engineering academic and his team to spend years researching how to build on Mars. It all started with Associate Professor Allan ...
Space Exploration
Feb 24, 2022
0
39
Concrete fractures that are invisible to the naked eye stand out in images produced through a technique created at Rice University.
Materials Science
Jan 25, 2022
1
382
Global warming and affordable housing are two dominant topics of public debate. Climate protection is achieved by reducing emissions of the greenhouse gas carbon dioxide (CO2). Housing is generated through more housing being ...
Materials Science
Nov 09, 2021
0
62
If concrete were a country, it would be the third largest emitter of greenhouse gases on Earth, behind only China and the United States.
Environment
Oct 19, 2021
0
28
Up to 3,000 residents of the Spanish island of La Palma on Monday were ordered to stay indoors after lava from a volcano destroyed a cement works, raising fresh fears of toxic gases.
Environment
Oct 11, 2021
0
26
Encountering concrete is a common—even routine—occurrence. And that's exactly what makes concrete exceptional.
Environment
Sep 16, 2021
0
84
In the most general sense of the word, a cement is a binder, a substance which sets and hardens independently, and can bind other materials together. The word "cement" traces to the Romans, who used the term "opus caementicium" to describe masonry which resembled concrete and was made from crushed rock with burnt lime as binder. The volcanic ash and pulverized brick additives which were added to the burnt lime to obtain a hydraulic binder were later referred to as cementum, cimentum, cäment and cement. Cements used in construction are characterized as hydraulic or non-hydraulic.
The most important use of cement is the production of mortar and concrete - the bonding of natural or artificial aggregates to form a strong building material which is durable in the face of normal environmental effects.
Cement should not be confused with concrete because the term cement explicitly refers to the dry powder substance. Upon the addition of water and/or additives the cement mixture is referred to as concrete, especially if aggregates have been added.
This text uses material from Wikipedia, licensed under CC BY-SA
